It can increase more efficiently the drainage area,through which the oil flows to the well from reservoir better than routine perforation,and so increase the productivity of the well.

Taking the uniform distributed rate as object function, numerical simulation was made for optimizing the injection distribution system and discharge area of the pipe.

With N2W fault zone in Sabei of Daqing Oilfield as an example,the relationships between fluid migration potential field and residual oil distribution,fluid migration and tectonic stress,and fractures and residu.

Periodical episodic activities of faults lead to the periodical episodic movement of fluid migration along fault zones.

Together with other evidences, such as regional distribution patterns of Sb, Sr and Hg in the strata, it was explained as a result of large scale fluid flow leaching the ore forming materials from the strata and focusing them into the fossil flu.

According to oil-source correlation and the spatial distribution law of homologous hydrocarbon reservoirs,the difference in the hydrocarbon migration direction of the two sets of source rock is studied.